In 1781 the coin shilling was worth 75 times more than a paper shilling, because of that, all debts should be paid with coin and not paper. Farmers were especially moved by that and many of them had to sell their farms to get money and pay debts. With that, Daniel Shay - a former captain in the continental army - led an army of farmers in a revolt that was called Shay’s Rebellion. They demanded tax relief and a moratorium on debt collection. In the end, the rebellion was put down but it pushed the federal government to provide economic relief.
The Seven Years War was, in essence, a multi continent war between France and Great Britain.
So, their involvement was total.
I believe it was the use of poisonous gasses, which they not only used on the Jews but in war too......., or The newly created Machine gun<span />